/////////////////////////////////////////////////////////////////////////////
// Original code from libhdfs3. Copyright (c) 2013 - 2014, Pivotal Inc.
// All rights reserved. Author: Zhanwei Wang
/////////////////////////////////////////////////////////////////////////////
//  Modifications by Kumo Inc.
// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//



#pragma once

#include <kmhdfs/client/token.h>
#include <kmhdfs/common/hash.h>
#include <kmhdfs/rpc/rpc_auth.h>
#include <kmhdfs/rpc/rpc_config.h>
#include <kmhdfs/rpc/rpc_protocol_info.h>
#include <kmhdfs/rpc/rpc_server_info.h>
#include <memory>

namespace Hdfs {
    namespace Internal {
        class RpcChannelKey {
        public:
            RpcChannelKey(const RpcAuth &a, const RpcProtocolInfo &p,
                          const RpcServerInfo &s, const RpcConfig &c);

        public:
            size_t hash_value() const;

            const RpcAuth &getAuth() const {
                return auth;
            }

            const RpcConfig &getConf() const {
                return conf;
            }

            const RpcProtocolInfo &getProtocol() const {
                return protocol;
            }

            const RpcServerInfo &getServer() const {
                return server;
            }

            bool operator ==(const RpcChannelKey &other) const {
                return this->auth == other.auth && this->protocol == other.protocol
                       && this->server == other.server && this->conf == other.conf
                       && ((token == NULL && other.token == NULL)
                           || (token && other.token && *token == *other.token));
            }

            const Token &getToken() const {
                assert(token != NULL);
                return *token;
            }

            bool hasToken() {
                return token != NULL;
            }

        private:
            const RpcAuth auth;
            const RpcConfig conf;
            const RpcProtocolInfo protocol;
            const RpcServerInfo server;
            std::shared_ptr<Token> token;
        };
    }
}

HDFS_HASH_DEFINE(::Hdfs::Internal::RpcChannelKey);
